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US8328391B2 - Lighting module - Google Patents

Lighting module Download PDF

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Publication number
US8328391B2
US8328391B2 US12/096,035 US9603506A US8328391B2 US 8328391 B2 US8328391 B2 US 8328391B2 US 9603506 A US9603506 A US 9603506A US 8328391 B2 US8328391 B2 US 8328391B2
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US
United States
Prior art keywords
walls
led
lighting module
mesh
diffuser plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active, expires
Application number
US12/096,035
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English (en)
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US20080285280A1 (en
Inventor
Pieter Jacob Snijder
Anthonie Hendrik Bergman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Signify Holding BV
Original Assignee
Koninklijke Philips Electronics NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Assigned to KONINKLIJKE PHILIPS ELECTRONICS N V reassignment KONINKLIJKE PHILIPS ELECTRONICS N V ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BERGMAN, ANTHONIE HENDRIK, SNIJDER, PIETER JACOB
Publication of US20080285280A1 publication Critical patent/US20080285280A1/en
Application granted granted Critical
Publication of US8328391B2 publication Critical patent/US8328391B2/en
Assigned to KONINKLIJKE PHILIPS N.V. reassignment KONINKLIJKE PHILIPS N.V. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: KONINKLIJKE PHILIPS ELECTRONICS N.V.
Assigned to PHILIPS LIGHTING HOLDING B.V. reassignment PHILIPS LIGHTING HOLDING B.V. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KONINKLIJKE PHILIPS N.V.
Assigned to SIGNIFY HOLDING B.V. reassignment SIGNIFY HOLDING B.V. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: PHILIPS LIGHTING HOLDING B.V.
Active legal-status Critical Current
Adjusted expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • F21V11/06—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using crossed laminae or strips, e.g. grid-shaped louvers; using lattices or honeycombs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S10/00—Lighting devices or systems producing a varying lighting effect
    • F21S10/02—Lighting devices or systems producing a varying lighting effect changing colors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2105/00—Planar light sources
    • F21Y2105/10—Planar light sources comprising a two-dimensional array of point-like light-generating elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2113/00—Combination of light sources
    • F21Y2113/10—Combination of light sources of different colours
    • F21Y2113/13—Combination of light sources of different colours comprising an assembly of point-like light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the present invention relates to a lighting module comprising a carrier, a plurality of LED groups, each group consisting of at least one LED, arranged in an array on the carrier, a mesh, arranged at the carrier, and a front diffuser plate arranged in front of the mesh.
  • LED based lighting modules are often employing multiple high-brightness LEDs, which are arranged in a regular pattern on a flat carrier. For instance, such a pattern may be a circular or orthogonal array. Often a uniform light distribution is required, and then the LED array is covered by a light diffuser plate arranged at some distance of the LED array in the direction of an observer. The whole lighting module is then regarded as one pixel. However, in some applications it would be desirable to be able to obtain a sub-pixeled lighting module having sub-pixels, being separated from each other. This has been obtained by arranging a mesh of walls, which form cells, on the LED carrier. The diffuser plate is mounted on top of the mesh. Thereby separate chambers, each surrounding a LED or LED group, e.g. an RGB LED group, are formed. However, these prior art lighting modules have a low resolution.
  • the invention is based on an insight that by letting the light be mixed in the optical path and before passing the diffuser plate, light effects comparable to those ordinary obtainable only by means of a high resolution lighting module are obtainable by means of a low resolution lighting module.
  • a lighting module comprising a carrier, a plurality of LED groups, each group consisting of at least one LED, arranged in an array on the carrier, a mesh, arranged at the carrier, and a front diffuser plate arranged in front of the mesh.
  • the mesh comprises first walls, which are arranged in a geometrical pattern forming a plurality of cells, such that the light emitted from at least some of the LED groups, which are adjacent to each other, is mixed before passing the diffuser plate.
  • the mixing is obtained by providing translucent walls.
  • the mixing is obtained by placing the diffuser plate at a distance from the wall edges facing the diffuser plate. Thereby a gap is obtained through which LED light can pass to mix with light from a neighboring LED group.
  • the mixing is obtained by dividing the emitted light in two or more parts.
  • the parts belong to different cells, where they may be mixed with light emitted by other LED groups.
  • the lighting module as defined in claim 5 , it is easy for a user of the lighting module to change light patterns merely by exchanging the mesh.
  • FIG. 1 schematically shows a perspective, partly cut-off, view of a first embodiment of a lighting module according to the present invention
  • FIG. 2 schematically shows a perspective, partly cut-off, view of a second embodiment of a lighting module according to the present invention
  • FIG. 3 schematically shows a plan view of a third embodiment of a lighting module according to this invention.
  • FIGS. 4 a and 4 b schematically show a plan view and a perspective view of a mesh employed by a fourth embodiment of a lighting module according to this invention.
  • FIG. 5 schematically shows a plan view of a fifth embodiment of a lighting module according to this invention.
  • a first embodiment of a lighting module 101 comprises a LED carrier 103 , a mesh 105 , a diffuser plate 107 , and LED groups 109 .
  • the LEDs 109 are arranged on a front surface of the LED carrier 103 . More particularly the carrier 103 is a substrate and the LEDs 109 are manufactured on the substrate by means of any appropriate known technique.
  • the mesh 105 is mounted at the front surface of the carrier 103 , and is constituted by orthogonal walls 111 , standing up from the front surface of the carrier 103 .
  • the walls form, i.e. define, square cells 113 .
  • Each cell 113 contains a LED group 109 , which is located at the center of the cell 113 , at a maximum distance from the walls, or wall portions, 111 surrounding it.
  • each cell can be regarded as a pixel in the total image, or light pattern, that is represented by the lighting module 101 .
  • the diffuser plate 107 is mounted on top of the mesh 105 , and more particularly it is engaged with front edges of the walls 111 . Thereby the diffuser plate 107 covers the cells 113 forming a roof thereof.
  • the walls 111 are translucent.
  • each LED group 109 When the LED groups 109 are emitting light, due to the translucency of the walls 111 , the light of each LED group 109 is partly separated from the light of adjacent, or neighboring LED groups 109 , and partly mixed with the light of the adjacent LED groups 109 . As a consequence there will be no distinct borders between the pixels of the image. Instead diffuse transitions will occur, generating, for example, a blurred impression.
  • a second embodiment of alighting module 201 similar to the first embodiment, has a carrier 203 , a mesh 205 , and a diffuser plate 207 .
  • the mesh is different in that only the outer walls 211 , forming the circumference of the lighting module 201 , are full height walls, i.e. the diffuser plate 207 is supported by these walls alone. All other walls 211 are lower, leaving a gap 210 between the front, or top, edges thereof and the diffuser plate 207 .
  • the mixing can be controlled by the width of the gap 210 as well as the degree of translucency of the walls.
  • the walls' ability to pass light may range from zero, in combination with the described gap or some other mixing property as will be further described below, to fully transparent, although a modest translucency is often preferred.
  • the lower walls 211 may be non-translucent while the full height walls may be translucent, in order to obtain about the same degree of mixing of light originating from adjacent cells of different neighboring lighting modules 201 as of light from adjacent intra module cells.
  • the mesh walls 303 are full height walls but they are positioned on top of the LED groups 305 .
  • the walls 303 run across the LED groups, such that they divide each LED group 305 in two portions wherein the portions reside in different cells 307 .
  • the mesh walls 303 are arranged such that each cell 307 enclose two parts of different LED groups 305 .
  • the mesh can be seen as constituted by walls 303 forming an outer square, walls 303 forming an X, wherein each end of the walls is engaged with a different corner of the outer square, and a smaller copy of this arrangement inscribed therein and rotated 45 degrees relative to the larger arrangement.
  • This wall arrangement results in triangular cells as an alternative to the square cells of the embodiments described above. With these triangles even more compositions of light patterns are possible.
  • a fourth embodiment of the lighting module 401 comprises a mesh having first walls 403 of full height, i.e. extending from the front, or top, surface of the substrate 405 to the back surface, or underside, of the diffuser plate, and second walls 407 of half the height of the first walls 403 .
  • the first walls 403 are straight and form square cells.
  • the second walls 407 are arc shaped. Each one of the second walls 407 extend between perpendicular wall sections of the first walls defining a cell, and form a sub-cell within the cell.
  • Within each cell there are one or more LED groups, preferably RGB tripleds.
  • LED groups preferably RGB tripleds.
  • the cells are square, there are four LED groups 409 in each cell, and there are four arc shaped walls 407 , located at different corners of the cell.
  • Each LED group 409 is positioned such that a respective arc shaped wall 407 divides the light-emitting surface in two portions, one on each side of the wall 407 .
  • shading-shading effects are obtained.
  • a fifth embodiment 501 of the lighting module is shown in FIG. 5 . It is similar to the third embodiment. The only difference is that some of the walls 503 are differently arranged. The wall still divides the light output of the LED groups 505 in two parts.
  • the walls can be seen as comprised of an outer square, an intermediate square, inscribed in, and rotated 45 degrees relative to, the outer square, such that the corners of the intermediate square engage the walls of the outer square at the middle thereof. Further, an inner square is inscribed in the intermediate square and rotated 45 degrees relative to the intermediate square. Finally two walls constitute an X extending between respective diagonal corners of the outer square.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
US12/096,035 2005-12-07 2006-11-29 Lighting module Active 2027-12-10 US8328391B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP05111779.4 2005-12-07
EP05111779 2005-12-07
EP05111779 2005-12-07
PCT/IB2006/054506 WO2007066260A1 (fr) 2005-12-07 2006-11-29 Module d'eclairage

Publications (2)

Publication Number Publication Date
US20080285280A1 US20080285280A1 (en) 2008-11-20
US8328391B2 true US8328391B2 (en) 2012-12-11

Family

ID=37964637

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/096,035 Active 2027-12-10 US8328391B2 (en) 2005-12-07 2006-11-29 Lighting module

Country Status (7)

Country Link
US (1) US8328391B2 (fr)
EP (1) EP1960710B1 (fr)
JP (1) JP2009518798A (fr)
KR (1) KR101370325B1 (fr)
CN (1) CN101326402B (fr)
TW (1) TWI403668B (fr)
WO (1) WO2007066260A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105858411A (zh) * 2016-06-03 2016-08-17 苏州铃木电梯有限公司 厢式电梯吊顶
US20160334077A1 (en) * 2015-05-15 2016-11-17 Nichia Corporation Method of manufacturing light distribution member, method of manufacturing light emitting device, light distribution member, and light emitting device
US11175018B2 (en) * 2018-06-08 2021-11-16 Signify Holding B.V. Rigid lighting unit
US20220308272A1 (en) * 2021-03-24 2022-09-29 Nichia Corporation Light-reflecting member and light source device

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KR101111274B1 (ko) * 2004-06-29 2012-02-17 코닌클리즈케 필립스 일렉트로닉스 엔.브이. Ｌｅｄ 조명
CN101868754B (zh) * 2007-11-20 2012-04-18 皇家飞利浦电子股份有限公司 背光系统及显示设备
KR101021653B1 (ko) * 2009-03-07 2011-03-17 (주)비스로 하프미러 엘이디 조명장치
CN101852343A (zh) * 2009-03-24 2010-10-06 锐光照明系统（上海）有限公司 透射式背光源led灯箱匀光装置及灯箱
US20110058363A1 (en) * 2009-09-09 2011-03-10 Anthony Fattizzi Candle or Lighter with LED Simulated Flame and Wireless System For Same
CN102087820A (zh) * 2009-12-02 2011-06-08 锐光照明系统（上海）有限公司 一种led灯箱
JP2011210527A (ja) * 2010-03-30 2011-10-20 Panasonic Electric Works Co Ltd 照明器具
DE202012103452U1 (de) * 2012-09-11 2013-12-12 Zumtobel Lighting Gmbh Rasterleuchte mit LED-Lichtquellen
JP6288693B2 (ja) * 2013-09-17 2018-03-07 Ｎｅｃライティング株式会社 照明器具および照明装置
CN104680947A (zh) * 2015-02-15 2015-06-03 北京环宇蓝博科技有限公司 Led屏幕消除莫尔条纹并提高填充系数的装置及方法
EP3057082B1 (fr) 2015-02-15 2019-10-09 Beijing Universal Lanbo Technology Co., Ltd. Affichage à del et affichages à del
US20160245502A1 (en) * 2015-02-23 2016-08-25 Cambridge International Inc. Lighted architectural panel system
GB2541941A (en) * 2015-09-07 2017-03-08 Kosnic Lighting Ltd Diffuser
CN108750885A (zh) * 2018-07-16 2018-11-06 中山市鑫海精密制造科技有限公司 一种轿厢吊顶
CN108916673A (zh) * 2018-08-16 2018-11-30 浙江彩丞照明科技有限公司 一种可以进行分区域点亮的照明灯具
CN109185752B (zh) * 2018-09-20 2025-06-17 广东创浦科技有限公司 一种新型置物架壁灯
KR102026295B1 (ko) * 2019-05-22 2019-09-27 주식회사 조명쟁이 천정 직착등용 커버 조립체
KR102365959B1 (ko) * 2019-07-03 2022-02-23 후지라이테크 주식회사 다색 조명 장치
WO2021001692A1 (fr) * 2019-07-04 2021-01-07 Bilous Nazar Systèmes d'éclairage et procédés d'affichage de lumière colorée dans des zones isolées et affichage d'informations
CN110578908A (zh) * 2019-08-15 2019-12-17 广州市雅江光电设备有限公司 一种彩色面板灯系统
US11933488B2 (en) 2020-04-21 2024-03-19 Signify Holding B.V. LED luminaire with optical element
DK181332B1 (en) * 2021-03-25 2023-08-16 Lego As Modular construction system light matrix
WO2024002827A1 (fr) 2022-06-28 2024-01-04 Signify Holding B.V. Insert pour dispositif électroluminescent
UA129069C2 (uk) * 2022-08-17 2025-01-01 Назар Борисович Білоус Освітлювальний пристрій

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WO1982001930A1 (fr) 1980-12-03 1982-06-10 Sven A Willumsen Grille double pour lampe a fluorescence
EP0279386A1 (fr) 1987-02-17 1988-08-24 Siemens Aktiengesellschaft Dispositif d'éclairage
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US20040022058A1 (en) 2000-10-13 2004-02-05 Flat White Lighting Pty Ltd. Lighting system
EP1496488A1 (fr) 2002-04-17 2005-01-12 Kabushiki Kaisha Box Dispositif electroluminescent de surface
WO2005047764A1 (fr) 2003-11-17 2005-05-26 Koninklijke Philips Electronics N.V. Dispositif d’eclairage
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US3922072A (en) 1972-02-17 1975-11-25 Pilkington Perkin Elmer Ltd Biocular magnifying lenses
WO1982001930A1 (fr) 1980-12-03 1982-06-10 Sven A Willumsen Grille double pour lampe a fluorescence
EP0279386A1 (fr) 1987-02-17 1988-08-24 Siemens Aktiengesellschaft Dispositif d'éclairage
JPH0240687A (ja) 1988-08-01 1990-02-09 Seiwa Denki Kk Ｌｅｄ表示ユニット
JP2000321574A (ja) 1999-05-11 2000-11-24 Matsushita Electric Ind Co Ltd 液晶表示装置
US20040022058A1 (en) 2000-10-13 2004-02-05 Flat White Lighting Pty Ltd. Lighting system
EP1496488A1 (fr) 2002-04-17 2005-01-12 Kabushiki Kaisha Box Dispositif electroluminescent de surface
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160334077A1 (en) * 2015-05-15 2016-11-17 Nichia Corporation Method of manufacturing light distribution member, method of manufacturing light emitting device, light distribution member, and light emitting device
US10415795B2 (en) * 2015-05-15 2019-09-17 Nichia Corporation Method of manufacturing light distribution member with shielded individual transmissive pieces and light-shielding frame, method of manufacturing light emitting device having light distribution member, light distribution member, and light emitting device
CN105858411A (zh) * 2016-06-03 2016-08-17 苏州铃木电梯有限公司 厢式电梯吊顶
US11175018B2 (en) * 2018-06-08 2021-11-16 Signify Holding B.V. Rigid lighting unit
US20220308272A1 (en) * 2021-03-24 2022-09-29 Nichia Corporation Light-reflecting member and light source device

Also Published As

Publication number Publication date
US20080285280A1 (en) 2008-11-20
KR20080081305A (ko) 2008-09-09
TWI403668B (zh) 2013-08-01
CN101326402B (zh) 2010-06-02
EP1960710A1 (fr) 2008-08-27
EP1960710B1 (fr) 2015-01-07
CN101326402A (zh) 2008-12-17
TW200728655A (en) 2007-08-01
JP2009518798A (ja) 2009-05-07
KR101370325B1 (ko) 2014-03-05
WO2007066260A1 (fr) 2007-06-14

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